h5的canvas实现图片前端JS压缩

转载鑫空间、鑫生活的博客：作者：张鑫旭

HTML5 file API加canvas实现图片前端JS压缩并上传

http://www.zhangxinxu.com/wordpress/2017/07/html5-canvas-image-compress-upload/

文章来源: h5的canvas实现图片前端JS压缩